Plot
A coach full of schoolgirls breaks down in the Lake District, forcing the girls to take shelter for the night in a remote hotel. Meanwhile, strange and macabre acts of violence are occurring to the locals and their pets, perpetrated by four escaped mental patients—Mr. Smith, Mr. Trubshaw, Mr. Muldoon and Mr. Jones—who have been dosed with LSD as part of their treatment. The four men, roaming the area, are convinced they are living a shared dream in which they are free to engage in their demented fantasies of rape and murder.
After the girls are taken into the hotel, a gamekeeper is brutally murdered with a hatchet. Shortly after, Jones attacks one of the hotelkeepers, who manages to slash him across the face before he strangles her to death. Meanwhile, one of the girls, Sandy, discovers the gamekeeper's body in the woods, and encounters Mike, a benevolent tourist who is camping nearby with his friends, Julie, and the American Pete. The two men attempt to calm Sandy, and subsequently find Julie in a disturbed state, having been attacked by the four escaped patients.
Meanwhile, the other eight girls rehearse their recital before going to bed. Mary ventures downstairs where she finds Smith, Trubshaw, and Muldoon having killed one of the chaperones. Another of the chaperones, Mrs. Hargreaves, finds Smith sexually assaulting Mary, but they kill her when she attempts to intervene, and incapacitate chaperone Miss Lilac in the process. Jones arrives at the hotel during the melee. Anne, Elizabeth, and Agatha, discovering the invasion, barricade themselves in their room.
While Mike goes to retrieve a shotgun from his car, Pete travels on foot to the hotel, seeking help, and is confronted by Mr. Jones, who attacks him. Shortly after, the four assailants, still holding Mary captive, attempt to coax Anne, Elizabeth, and Agatha out of their room by shouting that a fire has broken out in the hotel. Pete finds two other girls in their room, and helps them escape from an upstairs window. Agatha taunts Mr. Trubshaw, distracting him while her friends escape and hide in the woods. Pete attempts to lure Mr. Jones away from the girls, but he chases them and they become separated, eventually strangling one whom he corners against a lake.
Jones stumbles upon the campsite where a terrified Sandy and Julie hide in a tent, but is killed by a three-legged Doberman Pinscher that the men had recently mutilated. Mike arrives and orders Sandy and Julie to depart toward the village. Mike reunites with Pete at the hotel where Smith, Trubshaw, and Muldoon are raping Anne. Smith comes to the realization that the men are not in a dream, which he declares to Trubshaw and Muldoon. Pete, meanwhile, hides the girls in the basement where the attackers soon locate them.
A fire breaks out in the basement, diverting the men and allowing the girls to flee with Mike, while Smith, now again believing he is in a dream, allows himself to burn to death. The girls are escorted to a barn by Mike, while Pete returns to the hotel to save Miss Lilac and obtain Mike's shotgun. Pete is confronted by Trubshaw, who shoots him, injuring him. Trubshaw chases Pete into the woods and attempts to stab him to death, but is killed by Agatha, who has come to his aid armed with a sickle.
At dawn, Miss Lilac, having regained consciousness, finds Smith's burnt corpse in the basement. Mike and Julie stumble upon the scene shortly after, finding Muldoon clinging to Smith's body. Agatha accompanies the injured Pete back to the hotel. Pete, Agatha, Miss Lilac, Mike, and Julie, stand outside the hotel in a daze as a police officers arrives.
Production
During the mid-to-late 1970s, maverick directors such as Pete Walker and Norman J. Warren were trying to spice up the much-derided genre of British horror films. These films would later be dubbed "New Wave" British horror, on account that they pushed the boundaries of taste as much as was possible within the British Board of Film Classification's strict regime and were set in modern-day 1970s Britain and centered on 20-30 aged protagonists, differing them from the predominantly period piece horrors of Hammer Films Productions that had gone before. Alan Birkinshaw had begun his career in commercials, moving on to directing and producing Confessions of a Sex Maniac in 1974, and viewed making horror films as a natural progression. "we decided that the horror film (genre) was more up market than a sex comedy" he told Creeping Flesh in 2003. Birkinshaw's film has been cited as combinings elements of Kubrick's A Clockwork Orange , the notorious American sleaze epic Carnal Madness (which was released in Britain as The Sizzlers), and a low-rent, late-period Carry On film. However, by adding (faked) animal cruelty and the flippant treatment of rape, Birkinshaw created what was described in Matthew Sweet's book Shepperton Babylon as the most tasteless movie in British cinema history.
Killer's Moon was shot off season at Armathwaite Hall in the Lake District. The eclectic cast includes David Jackson, Jane Hayden (sister of cult actress Linda Hayden), JoAnne Good, future restaurateur Lisa Vanderpump, Hilda Braid, comedian Chubby Oates and Hannah the three legged dog. Hannah the three legged dog in the film, was originally a pub dog who had lost a leg as the result of a shotgun wound sustained during an armed robbery. She was later awarded the doggy Victoria Cross award for bravery.
